Due to have this done Friday morning and I am so scared. I have a terrible gagging reflex and I don't think I can do it. Nurse rang me today she said it should only take 10 minutes and I can leave by lunchtime. She was rushed and I forgot to ask her if I will be sedated, can I request this? I will feel much happier if I'm asleep and won't know anything about it. Anyone here had one done please tell me I will be asleep! Oh and how was it?